Paste-applying apparatus



F. COATES.

PASTE APPLYING APPARATUS.

APPLICATION FILED SEPT.25, 1920.

Patented July 12 19 21a attozwu STATE rat an FREDERICK warns, on wroiarne, onro, ASSIGNOR T0 FEDERAL rnonuers COMPANY, orcrncrnnarr, orrro, A CORPORATION or o'nro.

PASTE-APPLYHG APPARATUS.

Specification of Letters Patent.

Patented July 12, 1921..

Application filed September 25, 1920. Serial No. 412,833.

To all whom it may concern Be it known that I, FREDERICK CoArns a citizen of the United States residing at \Vyoming, in the county of l lamilton and State of Ohio, have invented certain new and useful Improvements in Paste-Applying Apparatus, of which the following is a specification.

This invention relates to the manufacture of paper or pasteboard cartons. More particularly the invention relates to a machine for applying paste to the edge of such a carton so that the closure for the end of the the machine being in the nature of a paste applying apparatus.

In devices of this character considerable ditiiculty has been experienced in applying a uniform quantity of paste just at the mouth of the carton body in such manner that there will be no excess paste run down the inside of the carton.

One of the most important objects of this invention is to provide an improved arrangement whereby a uniform quantity of paste may be applied inside of the carton mouth in such manner that no excess of paste will exist and thereby there will be no running or dripping of the paste below the point to which it properly is applied.

another objection that has heretofore existed has resided in the fact that the means employed for applying the paste was of such nature that when idle it has been either necessary to close a valve or an excess of paste would gather on the applying device.

A second important object of the invention is to provide an improved form of paste applying means wherein the paste will only be delivered to the part of such means that contact with the carton mouth at the time when the device operates to apply paste. I

Another difficulty that has existed resides in the fact that it has been only through the use of apparatus of considerable complication that it is possible to apply paste both within and without the mouth of the carton so that carton ends which have their rims crimpe'd over the body said rims engaging both the inner and outer surfaces, were difiicult of application.

A third very important object of this invention is to provide a very simple means accompanying drawings, and specifically claimed.

In the accompanying drawings like characters of reference indicate like parts of the I 7 several views and carton may be securely attached to the body Figure 1 is a side elevation of a paste applylng apparatus constructed in accord- .ance with this invention, the view being partly broken away to more clearly illustrate the apparatus.

Fig. 2 is a vertical section on the line 2--2 of Fig. 1.

Fig. 3 is a perspective view of a modification of the paste applying means.

here disclose the particular type of support.

Depending from this table 10 is a lug or bracket 11 whereto is pivoted one end of a lever 12 which may be raised by hand or may have connection with a suitable power device, not shown, for the purpose of raising and loweringsuch lever. There also depends from the table a guide 18 through which passes a plunger 14 having its lower end connected by a pin and slot connection 15 with the lever 12. On the upper end of this guide 14 is a holder 16 which is recessed so that the finished part of the carton may be snugly seated therein and held in proper position for operation. In Figs. 1 and 2 of the illustration the carton disclosed is cylindrical and is illustrated at A, the body only being shown. It will however be ob vious that one head of the carton could be applied beforebeing placed in the carrier 16 this head being located on the lower end since all that is necessary is to have the upper end of the carton open.

Projecting upward from the table 10 is a standard 17 whereon is carried slidably a sleeve 18 which is held in adjusted position on. the standard by means of a set screw 19. Projecting from the sleeve 18 is a bracket 20 which is firmly secured to a paste tank 21 having a closed bottom 22 and provided with an annular series of perforations 23 just above the bottom 21. This tank is also pro,- vided, above the perforations, with a peripheral flange 24: having suitable openings therein" wherethrough pass headed screws 25. The lower end of the tank 21 is turned externally to provide a smooth surface so that a paste applyingring 26 may slide freely thereon. This ring 26- which is preferably termed the pasting ring is of such size externally as to fit neatly within the carton A and in order that it may enter the carton without injuring the latter the lower edge of the ring is'beveled as at 27. Extending through the ring 26 are openings or ports 28 corresponding in number and position to the openings or ports 23 so that when the ring is slid upward from its lowermost position the ports 23 and 28 will register and paste will escape from the tank 21 through such ports. This ring is provided at its upper end with a peripheral flange 29 into which the lower ends of the screws 25 are engaged and between the flanges 2 1 and 29 are springs 30 which serve to hold the pasting ring in its lowermost position.

7 At Fig. 3 is shown a rectangular pasting ring 31 which, in its details of construction, is in all respects similar to the ring 26. It will be obvious that there is employed with such rectangular ring a rectangular tank and that the carton will also be rectangular. Furthermore, it will be obvious that many different shapes of cartons may be pasted with this machine as it is merely necessary to vary the contour of the several parts 16, 21

. and 26 to accomplish this result. It is not deemed necessary, in view of such obviousness, to here illustrate either forms as hexagons, octagons, ovals, and the like. Furthermore it will be noted that the distance between the tank and its pasting ring and the table 10 may be varied at will bymo'ving-the sleeve up and down on the standard. Thus cartons of different heights may be readily accommodated. It is furthermore noted that the flange 29 adjacent each ring is provided with an annular recess 32 which recessis rounded at its inner part and is slightly wider than the thickness of the carton wall.

In the operation of the device a carton is placed in the holder 16 and the lever 12 raised. This brings the carton up so that The lever 12 is then 7 of the lever is spread'all over the outer surface of the pasting ring 26. Now let us assume that the device has been in use a suflicient time to coat the outer surface of the ring 26 with the paste. just described takes place the excess paste on the ring 26 is forced upward by the upper edge of the carton A and enters the groove 32. As the upper edge of the'carton foil ws into this groove the pastelis squeezed out and as it cannot pass back down the surface of the ring it is squeezed down over the outer surface of the carton. Thus the carton is pasted both on its inside and its outside and no excess of paste is left to run down the inside and injure the contents.

There has thus been provided a simple and efficient device of the kind described and for the purpose specified.

Having thus described the invention-what is claimed as new is 1. In a pasteapp lying apparatus, a paste 30 As the operation cause the ports to register, and means to re-' store the ring to initial position upon removal of the carton.

3. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carton holder axially alined with the tank and ring, and means to reciprocate the carton holder whereby a carton therein may be engaged with the ring to force it along the tank and bring the ports into registry.

4. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carton V holder axially alined with the tank and ring,

means to, reciprocate the carton holderwhereby a carton therein may be engaged with the ring to force it along the tank and bring the ports into registry, and springs normally urging the ring toward the holder to bring the ports out of registry.

5. In a paste applying apparatus, a paste tank, a paste applying ring slidable on said tank, said ring and tank having cooperating paste ports normally out of registry, means to hold a carton arranged to bring the carton into engagement with the ring and thereby cause the ports to register, and means carried by the ring for causing excess of paste on said ring to flow down the outside of the carton.

6. In a paste applying apparatus, a paste tank, a paste applying ring slidable on said tank, said ring and tank having cooperating paste ports normally out of registry, means to hold a carton arranged to bring the carton into engagement with the ring and thereby cause the ports to register, means to restore the ring to initial position upon removal of the carton, and means carried by the ring for causing excess of paste on said ring to flow down the outside of the carton.

7. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carton holder axially alined with the tank and ring, means to reciprocate the carton holder whereby a carton therein may be engaged with the ring to force it along the tank and bring the ports into registry, and means carried by the ring for causing excess of paste on said ring to flow down the outside of the carton.

8. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carton holder axially alined with the tank and ring, means to reciprocate the carton holder whereby a carton therein may be engaged with the ring to force it along the tank and bring the ports into registry, springs normally urging the ring toward the holder to bring the ports out of registry, and means carried by the ring for causing excess of paste on said ring to flow down the outside of the carton.

9. In a paste applying apparatus, a paste tank, a paste applying ring slidable on said tank, said ring and tank having cooperating paste ports normally out of registry, and

means to hold a carton arranged to bring the carton into engagement with the ring and thereby cause the ports to register, a flange on said ring having a groove adjacent the ring into which the edge of a carton may enter whereby excess paste from the ring will be forced into the groove and flow down the outside of the carton.

vl0. In a paste applying apparatus, a paste tank, a paste applying ring slidable on said tank, said ring and tank having cooperating paste ports normally out of registry, means to hold a carton arranged to bring the carton into engagement with the ring and thereby cause the ports to register, and means torestore the ring to initial position upon removal of the carton, a flange on said ring having a groove adjacent the ring into which the edge of a carton may enter whereby excess paste from the ring will be forced into the groove and flow down the outside of the carton.

11. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carbon holder axially alined with the tank and ring, and means to reciprocate the carton holder whereby a. carton therein may be engaged with the ring to force it along the tankand bring the ports into registry, a flange on said ring having a groove adjacent the ring into which the edge of a carton may enter whereby excess paste from the ring will be forced into the groove and flow down the outside of the carton.

12. In a paste applying apparatus, a paste tank, a pasting ring slidable on said tank, said tank and ring having cooperating paste ports normally out of registry, a carton holder axially alined with the tank and ring, means toreciprocate the carton holder whereby a carton therein may be engaged with the ring to force it along the tank and bring the ports into registry, and springs normally urging the ring toward the holder to bring the ports out of registry, a flange on said ring having a groove adjacent the ring into which the edge of a carton may enter whereby excess paste from the ring will be forced into the groove and flow down the outside of the carton.

In testimony whereof I aflix my signature.

FREDERICK COATES. 

